Tire-finishing machine



1,670,166 E D PUTT TIRE FINISHING MACHINE I Filed July 13, 1923 5Sheets-Sheet 1 May 15, 1928.

[dward D Puff.

May 15, 1928. I 1,670,166

E. D. PUTT TIRE FINISHING MACHINE Filed July 13, 1923 5 Sheets-Sheet 2 sX I Q [mm 22 Pm, I

. May 15, 1928.

1,670,166 E. D. PUTT TIRE FINISHING MACHINE Filed July 13, 1923 5Sheets-Sheet 3 jadezzZZr May 15, 1928. 1,670,166 7 E. D. PUTT I TIREFINISHING MACHINE Filed July 15 1925 5 Sheets-Sheet 4 i JudezZ'r! May15, 1928. 1,670,166

V E. D. PUTT TIRE FINISHING MACHINE Filed July 13, 19 25. 5 Sheets-Sheet5 [dam m Puff.

' shown in Figure 6;

Patented Ma 15,1928.

EDWARD 13. Puma, or AKRoNQ'oHIo, nss enoa Totes rinn sronn Tins ANDRUBBER COMPANY, or AKRON, OHIO, A CORPORATION or; on o. 1

am's-FINISHING Macrame,

Application filed July 13, 1923. Serial No. 6 51,28 9.

. This invention relatesto the art of tire 1 manufacture andparticularly to that portion of what is known as the finishing operavtions, in which the side-wallsand 'chafer strips .are applied;.Heretofore, as far as has come to my knowledge, these operations havebeen performed. by hand and it is the purpose of the present invention:to substitute machine operations for the hand operations and to do thework faster andmore.

accurately than by hand. a I p In the drawings and description there isdisclosed one form or embodiment of my invention, it being understoodthat theshowing is for the purpose-of illustrating the irivention andnot fordestricting it to exact conformance therewith.

In the drawings s v t Figure 1 is a side elevation of a unit whichcomprises two of the finishing machines with a common motor drive;

Figure 2 is an enlarged side elevation-of the upper part of the machinelooking at the feeding-in side; v

opposite side of the machine; Figure 4 is a plan viewflof the machine;

Figure 5is-a side elevation, partly insection, showing the materialapplying rollers in inoperative position;

Figure 6 is an enlarged front elevation of the rollers for turning thechafer strip around the toe of the bead;

Figure 7 is an end view of the rollers Figure 8 is a side elevation ofthe chafer stitching and rolling mechanism; 7 i

' Figure 9 is a plan. view of the stitching and rolling mechanism with aportion of the stitcher removed to illustrate the stitching wheel. I

In the present embodiment of my invention selected for illustration, Ihave shown two of my finishing machines driven from one motor and soconstructed that they com- Referring now to thedrawings in which likecharacters of reference designate simi as anclect-ric motor 28. Figure 3isfa similar view looking at the lar parts, 2 designates a-base on whichis 4 upper end of the column 4 is'shown ahead 6 suitably shaped andconstructed toreceive and support the various workingpar'ts'of j themachine comprislng my invention, the head beingprovided witha removablecover plate 8 to allow the assemblage of the driving mechanism to bedescribed hereinafter.

shaft 26 conveniently mounted upon the base vofthe machine. The shaft 26is connected 7 to any suitable source of power; the 'pre u ferredembodiment illustrated beingshown Pivoted at '30 upona' bracket 32arising above the head of the machineis an arm 34 .ing portion 36, toprovide a suitable bearing 75 which terminates in a downwardly extend-jl 38 for ahorizontalshaft 40 arranged above the shaft 12 and which issubstantially paral'- lel thereto when in operative position.-

Loosely mounted upon the shaft 40' is :a sideso I wall pressureroll 42comprising a'cylindrif cal body portion 44 preferably covered with I ayielding work-engaging surface of rubber, or sim lar -mater1al, andhaving an integral guide flange 46 constructed'to engage 'thef heel ofthe bead. I

Mounted upon the shaft 40 adjacent the 1 011 42119, a bead engagingroller48 substantially 'frusto'c onical in outline to conform to thesurface 50 of-"the bead,*and adapted to lay the Ichafer' strip Bsmoothly thereon.

The roll 48' is yi eldingly urged toward the 1 roll 42 by a spring 52surroun'dingthe shaft 40 and confined between a collar 54 and the innerend of the roll. --This construction allows the roll48 to yield relativeto the roll 42, a; circumstancerendered sometimes neces} 50 mounted ahollow column 4. Upon the sary by avariance in the size of the bead andthe thickness of the chafer strip.

In order to facilitate the "presentationtoand removal of the tire casingfrom the machine, provision is made for moving the pressure rollers.bodily towardand from the supporting roller. To this end the arm 34 isprovided with studs 56 on which are pivoted parallel links-58' connectedtogether by cross-bars 60 having reduced ends which extend throughsuitable holes in the links and are secured in place by cotter pins 62.

To the-lower end ofthe links 58 is attached a hook 64 for connectionwith a treadle lever 66 pivoted at 68 to abracket 70 upon the basegofthe.machine. A spring 72-.having one end-connected to thelinks 58 andthe "a: theirelevat'ed position, it being evident that other secured tothe machine column serves tomaintain the pressure rollers normally 111 Idownward movement of the foot treadle will ofthe tires I a Inthe'operation of the machine, the' sup .porting rollilt js constantlydriven and cause the rollers to approach the supporting roll ljandengage the side-wall and bead thus "will cause the casing it placed inengagement therewith tobe rotated. It. is

neces-sary,,however, at certainystages in the operat on toihave thecasing remain stationary,.- such a condition being desirable, forexample, whenthe side-wall and chai'er strip fla'rebeing started on thecasing and'during the splicing operation when the ad acent endsarejbeing connected. "To this end, an

angular lift arm 74 is rigidly connected to.

"TOIIBOI the crossbars and is adapted to engage the innerside of-thecasing and elevate the latter above the suppo'rting roll 14 whenever thepressurerollers 42 and48 are in inoperative position. Simultaneouslywith the downward movement ofthe pressure rollers toward the casing, thelift arm .74 retreats and allows the casingto engage the; supportingroll 14 and be: rotated thereby.

. It will be understood by those familiar with the manufactureofpneumatic tires,

that theiside- Wall strip isextremely tacky and'that precaution must beused to prevent thestrip; trom contacting with the casing prior to beingplaced in the position it is to finally assume thereonQ To prevent theundesirable' contact above mentioned, as well as to aid the operative inproperly placing .the strips, a separating bar 76 is shown arrangedabovethe tire casing, the strips being passed over the bar into the machineand I thus keptseparated from the casinguntil a 6U.

point immediately preceding the effective surface of the pressurerollers 42 and 48 is reached. Theguidebar 76. is .mounted .upon theupper end of a vertical stud 78 whichis carried bya link'80 pivoted at82 to the frame of the machine. Thus it will 76 may be readily swungaboutthe pivot 82 to bring it into orout of operative position. Upon thelower end of stud 78 and separated from the guide bar by a Washer 84:.is a guide be evident that the separating or guide bar roller 86 adaptedto engagethe toe of the bead and locate the casing in proper posi- LlOn-I The effect of the pressurerolls42 and 48 .is' 't'o press theside-Wall'A and ch'a'fer strip B firmly against the side of the casingand over the heel and face of the bead. In addition to the abovemechanism. the finishing mechanism includes means for smoothing thechaiier around and stitching it under the 'toe of the bead, an.operation exceedingly difficult to perform'bv a machine due" to thetendency on the part ofthe chafer strip to wrinkleuponfits applicationto this "part be the head; In the presentembodiment of'the invention, aseries of rollers 90 are posiionedsubstanti ally tangentially to thebead, the axis of each successive roller being arranged more nearly tovertical position than the precedingone so that the-chafer strip will begradually smoothed down around the toe of thebead and after-passing thelast roller 90 will hang substantiallyperpendicularto the inner'surfaceofthe'casing. The

turning rollers 90 are mounted in a casing .92 secured by abracket 94'totheframe of a the machine. I v

a The stitching mechanism illustrated for wiping the chafer stripunderthe toe of the bead comprises a member 96 in the 'form of the frustum ofan inverted cone, upon the small endof whichis formeda toothed stitchingwheel 98- having adiameter substantially equal to the b'ase-of the cone,the periphery of the stitching member being shaped to conform to thecross-sectional shape ofthe toe of the bead.- The stitching member-96 isdriven by the toe of the bead ill) which isgforced into frictionalengagement withthe stitching memberin a manner to be describedhereinafter.

The stitchingwheel 98 Wipes orkicks the" loose flange C" of the chaferstrip underthe toe of the head, it being at once evidentthatsince'theperipheryof the wheel is'greater than that portion of the stitchingelement engaged by bracket 100 which in turn is'supported by a secondbracket 102 fixed to the standard of the machine. I

After being turned backunder the, bead,

it desirable tofroll the chafer strip down firmly. To this end a roller104 is mounted thatthe bead will engage the rollers 90 and I thestitching mechanism to effect the proper anisms and the cycle of themachine asa to rotate "upon a horizontal stud 106 carried by bracket102,the roller 104 being adapted to extend within the tire casing and pressthe chafer strip againstthe inner side of the bead. I

It is necessary in the successful operation of the above describedmechanisms to keep. the tire bead into proper position with relationthereto, and to constantly crowd the tire casing toward the left inFigure 3 so operation thereof. vAs a means for accomplishing thisresult-,novel guiding means are employed which consist of a cylindricalroller 110 and a frusto-conical roller 112 arranged on opposite sides ofthe driving'and supporting roll 14, the axes of the first named rollersbeing tilted with respect to the radial line of the tire, thus causingthe latter to be urged constantly toward the operating instrumentalitiesin a manner clearly understood.

' In order to further facilitate the guiding of the tire casing, aplurality of rollers 114 and 116 having the axes thereof at right.angles to one another are provided at one side of the machine, theroller 114 being arrangedto engage the. side and the roller 116 thetread of the casing. An adjustment block 118 is arranged between theguide whole have been set forth in theforegoing description, they may besummarized briefly as follows: r

The usual side-wall A and chafer-strip -B are assembled in any desirablemanner to form a unit prior to the application thereof to the tirecasing. A tire casing 1, to which the side-wall and chater strip are tobe applied, is passed over the head of the machine and. arranged withone side thereof above the driving roll 14 in the manner illustrated inFigure 5. The separating and guide bar 76 is swung into position and theend of the previously assembledside-wall and chafer strip is properlysecured to the casing'by the operative. Upon dep'ression of the treadle66, the lift bar 74 will retreat and permit the driving roll 14 torotate the casing, carrying therewith the side-wall and" chafer stripwhich are guided into proper position by the operator as they are pulledthrough his hands. Simultaneously with the rotation of the] casing, thepressure 'stri to said casin applying the rollers '42an'd 48 will bemoved downwardly and roll the sidewall-and the charter strip to the sideof the" casing and outer face'ofv the bead respectively. The tiltedrollers will now gradually turn the overlapping flange C of the charterstrip into position to be swiped under the head by the stitching wheel98, the latter being rotated by the toe I of the head. Thesmoothingroller 104wwill press the turned-portion firmly and smoothlyagainst the inner edge of the. bead.

Having described my invention, what I claim as newand desireto secure byLetters Patent of the United States is:

1. A tire finishing machine having in combinati.on, means for supportingand rotating an unfinished tire casing'which has been removed from thebuilding core, said means being constructed to engage a portion only ofthe inside of the, casing, and means for applying a side-wall and chaferstripto the tire casing. I I 2. A tire finishing machine having incombination, means for supporting and rotating an unfinished tire casingwhich has been. removed from the building core, said means beingconstructed to engage a portion only of the 1ns1de of said casing, andmeans. for

guiding an assembledv side-wall and chater and means for applying thesaid elements to the casingr 8. A tire finishing machinehavlng incombination means'tor su ortin and rotatin 2 a an unfinished tire caslngwhlchhas been removed from-the building core, said means beingconstructed to engage a. portion only of the inside of said casing, 7means overwhich an .assembledsiddivall and chafer strip are fed toprevent contact between the said strip andcasing until a predeterminedpoint in the path oftravel of the 'strip has been reached,- and meansfor side-wall and chafer strip to the casing.

4. A tire finishing machine havingin combination, means for supportingand rotating separating I side-wall'and chafer strip to saidtire,tireyguiding means, a'ndmeans to crowd thetire constantly inzone directionto-maintain it in operative relation plying means. i

5. A tire finishing machinehav-ing in combination, a support-jforengagingla portion only of the inside of a tire casing'which has beenremoved from the building core, means for 'applyinga side-wall andchafer strip to said casing, "and means for] 1 moving said means towardand from said support.

6. Atire finishing machine having in combination. means en'gageable withaport ion onlyof the inside ofa tire casing forro'tat-f with respect tosaid aping an unfinished tire casing which has been removed from thebuilding core, a roll for an unfinishedtire, means for applying a 1 1means for V bead.

applying a side-wall to said casing, and .a. roll for applying a chaferstrip'to the face of the bead. v

7. A tire finishing machine having in combination, means engageable witha portion only of the'inside of a tire casing for rotating anunfinishedtire casing which has been removed from the building core, a side-wallapplying roller, a 'chafer strip applying roller, and yielding means forurging the rolls toward each other. v

8, A tire finishingmachine having in combination, supporting means forengaging a portion only of the inner surface of a tire casing which hasbeen removed from the building core, means for rotating said supportingmeans, means above said supporting means forapplying a side-wall to thecasing, and means adjacent said side-wall applying applying a chaferstrip to the 9. A machine for applying theside-wall and chafer strip toan unfinished tire casing, comprising'means for rotating the cas ing,means to crowd thecasing in a certain direction, meanslocated above therotating means for-pressing the side-wall and chaier strip against the sde of the casing and bead respectively, means for bodily moving thejpressingmeans positively toward the retating means to engage thecasing, and spring means for moving the pressing means away from therotating means to afford clearance for the removal of the work;

10. A machine for applying; the sidewall and chafer strip to anunfinished tire, comprising meansextending within the'casingforsupporting and rotating the latter. a sidewall pressure rollervhavinga resilient work engaging surface and a guide flange to engage the heelof the bead, and a roller adjacent the side-wall roller and yieldinglypressed thereagainst adapted to press the chafer strip against the faceof the bead, the

said rollers being mounted ona pivoted arm and constructed for bodilymovement toward andfrom the supporting means;

, 11. A machine for applying the side-wall and chafer strip to anunfinished tire casing, comprising means for guidingthe said strips tosaid casing and separate them there'- from, means for pressing thestrips against the side and head of the tire. means for turning thechaier strip under the bead, and means 'for crowding the casingconstantly in acertain direction to maintain it in operative relationwithrespectzto the operating instrumentalities;

12.A machine for-applying the side-wall and chafer strip to anunfinished tire casing" comprising, a driven roller for rotating thecasingyguide rolls tilted with respect to the radial line of the casingto constantly crowd the latter in one direction, means,

for rolling the side-Wall and chafer strip 'aga-instthe side and bead ofthe tire respectively, and means for stitching the chafer strip aroundand under the toe of the head.

.dialline of the casing to constantly force it in one direction, aplurality of rollers above the said support for pressing the sidewalland chafer strip against the-sidefiof the casing and head respectively,the said rollers being relatively yieldable,imeans for bodily moving therollers toward and from the support, and means associated with saidlatter meansfor lifting the casing above the support to prevent rotationof the casing.

14:;A1 machine "for applying side-wall and chafer strip toanunfinlshedtire casthe casing, meansitor continuously rotating thesupport, strip applying means located 'ing comprising a supportextending within casing to elevate the latter abovethesup port when theapplying means are in inop-e erative position to prevent rotation of thecasing by the support. 15. A tire finishing machine having incombination, means for'rotatingan unfinished tire casing, means forlifting the tire casing above the said-means to prevent rotation of thecasing, means tor applying a sidewall: to the side of the tire, meansfor applying a chafer stripto the face. of the head, means for graduallyturning the chafer. strip around the toe of the bead, means forstitching the chafer strip under the bead,-and means for rolling theturned under portion against the inner side of the casing. r c v 16. Atire finishing machine having in combination, means for supporting atire casing, means extending within the casing 'for rotating the latter,means for preventing therotation of the casing withoutstopping therotating means, means for guidingtan assembled side-wall and cha terstrip to said casing, means arranged above said rotating means forapplying the SMlG-Wfll'l'flfld chafer strip to'the side of the tire andface of. the bead, -means for gradually turning the chafer strip around'theftoe of thefbead, means for stitching the chafer'strip' under thehead, meanslfor pressing the turned por- 7 .tion againstthe inner sideof the casing,

and means for crowding the tire casing toward. the applying, turning andstitching means. I

17. A tire-'finishing-ma'chine havingin combination, means engageablewith a portion only of the. inside oi" a tire casing for supporting an.unfinished tire casing which has been removed from'the building core,and means for applying a side-Wall to the casing.

18. A machinelfor applying a side-Wall to anunfinished tire casing,having in combination, a side-Wall engaging roller having a gu de flangeadapted to engage the heel of the bead, a casing supporting roll belowthe said roller, means for moving the combination, means for applyingachafer strip to the bead of an unfinished tire casing which has beenremoved from the building core, and means engageable With a portion onlyof the inside of a tire .casing for rotating a tire casing past saidapplying means.

20. A tire finishing machine having in combination, means for supportingand rotating an unfinished tire casing, said means being construct-edand arranged'to extend Within the casing, means for applying a,

chafer strip to the bead of'the'casing, means for gradually turning thestrip around the toe of the bead, and means operated by the toe of thebead for stitching the strip under 1 the head.

21. A tire finishing machine having in combination, means for supportinga tire casing, means for applying a chafer strip to the bead, means forgradually turning the strip around the toe of the bead, means forrotating the casing, and means rotated by the toe of the bead forstitching the strip under the bead, the speed of the stitching meansbeing greater than the travel of the bead. Y

22. A tire finishing machine having in combination, means for supportingand r0- tating a tire casing, means for applying a chafer strip to theface of the bead, and

I means for stitching the strip onto the inner surface of the bead.

23; A tire finishing machine having in combination, means for supportingand rotating a tire casing, means for applying a chafer strip to theface of the bead, means for stitching the strip under the bead. andmeans for rolling the turned under portion against the inside of thecasing. I I

24. A tire finishing machine having in combination, means for supportingand rotating a tire casing, means for applying a chafer strip to theface of the bead, means for gradually turning the strip around the toeof the bead, means for stitching the strip under the bead, and means forrolling the turned under portion against the inside of the'casing. 25. Atire finishing machine having in combination, means for supporting androtatlng a tire cas1ng,.m eans ing the strip to the face of thebead','means for gradually turningthe strip'aroundthe, toe of the bead,meansfor stitching the strip under thelbead, and means for rolling theturned under portion against the inside of the casing.- j 'j 26. A tirefinishing machine having in combination, means for supporting a tirecasing, means for applying a chafer strip to for guiding [a chafer stripto said casing, means for apply 1 the face of the bead, and a toothedstitcher for kicking the strip under the bead.

27. A tire finishing machine having in" combination, means supportingand rotating a tire casing, means for guiding a, chafer' strip to saidcasing, means shaped to conform to the face ofthe bead for pressing thechafer strip against the bead, and means for turningthe strip onto theinnerv surface of the bead.

28. A tire finishing combination, means for supporting an unfinnishedtire casing, means for applying a chafer strip to the face of the bead,and means for gradually turning thestrip around the toe of the bead,said means including a machine, having in series of tilted rollershaving the axis of I each successive roller arranged more closely to theverticah 29. A tire finishing machine having in:-

combination, means for supporting an unfinished tire casing, means forapplying a 'chafer strip to the face and heel of the bead, meansincluding a series of tilted rollers having the axis of each succeedingroller arranged more nearly to the vertical than the preceding one forgradually turning the strip around the toe of the bead, and ya toothedstitcher for kicking the strip under the bead.

i 30. A machine forfinishing tires having in combination, a support foran unfinished tire casing, a pressure roll shaped toconform to the faceof the bead and adapted to apply a chafer strip thereto, means togradually turn the strip around the toe of the strip onto the a bead,and means to stitch the inner surface of the bead. t

31. A tire finishing machine having in' combination, means forsupporting a tire casing in an inclined vposition, means extendingWithin the, casing for rotating the ished tire casing which has beenremoved 1 from its tire building vform, said means being adapted toengage a portion only of the nside of said casing, and means forapplying a side Wall and ,chaferstrip to said mg. I I I combinationmeans for supporting anunfinished tire casing which has been removedfrom its: building form, said means being constructed to engage aportion. only of its innerperiphmy, means for applying side wall andchafer strip to said casing, and means for crowding the tire casingagainst said applying-means. A J i 34. A tire finishing machiner -havingin 10 comblnatlon means forv supportlng an unfinlshed tire casing- Whlchhas been removed from' the tire building iorm said means being adaptedto engage a, portion onlyi ofthe ing a finishing element to said casing.

inside of said casing, and means for apply.- 1|

EDWARD D. PUTT.

